Ceiling suspension device



Nov. 9 1926. 1,606,289

c. E. BOWERS CEILING sUsPENsIbN DEVICE Filed Nov. 11. 1925 11\'VENTOR. CZ/wast'. Bag/55's I ATTORNEY.

Patented Nov. 9, 1926.

CLAUDE nownns, or Los nnennns, CALIFORNIA.

CEILING susrnivsion DEVICE.

Application filed November '11, 1925. Serial No. 68,354.

This invention relates to a devi'ce'designed for use in connection with suspended ceilings of building structures.

An important object is to provide a simple device for suspending ceiling frames from building floors, in which the suspension may be readily adjusted in order that the ceiling frames will be rigidly supported in a level position relative to the building floor to which they are secured.

A further object is to provide a device that will eliminate all tendency of the suspended ceilings from sagging or stretching after attachment thereto' Further objects and advantages will appear from the appended description, reference being had to the drawing accompanying the same,- in which: a

' Fig. 1 is a perspective view partly in section of a reinforced concrete building fioor showing a plurality of ceiling suspension devices attached thereto carrying a ceiling framework. '7

Fig. 2 is a side elevation of one of the suspension devices. v 'Fig. 3 is a side View of the same.

Fig. 4 is a top plan View of the supporting stirrup of the device.

Fig. 5' is a perspective view of the device showing the stirrup locking plate in an. un-

- latched position, parts of the deformed suspension rod being broken away.

Referring more specifically to the'drawings, 5 designates a portion of a reinforced concrete floor, the under surface being provided with the usual concavities 6 formed therein by the metal joist mold pans and disposed in parallel relation.

I The suspension device here shown preferably consists of a cylindrical metal rod 7 of sufficient length having an eye 8 at th'e upper end thereof, a number of the rods being disposed along each of the parallel concavities 6 and equally spaced apart a distance of approximately three feet, the eyes 8 being embedded in the concrete floor. This rod throughout its entire length is provided with two oppositely disposed columns of flattened deformations 9 equally spaced apart for adjustably supporting the stirrup 10 that is detachably secured thereto.

Stirrup 10 is preferably formed from strap iron about one-eighth of an inch in thickness, and bent upon itself to form two parallel vertical members 11, 12, spaced a suitable distance apart and connected at oermit of the en a ement of the loekino- 2:: b :2

plate therewith when the stirrupis adjusted on the suspension rod.

In order that the stirrup be adjust ably secured to the rod 7,the bent-portion is provided with a circular aperture having a slot 21 extending therefrom in the direction of member 11. By this construction the stirrup maybe easily slipped upwardly onto the rod 7 until it reaches the desired adjustment, when the stirrup. may be moved transversely towards the rod to chamber a pair of the flattened portions 9 in the slot 21 extending. from the circular aperture 20.

The metal locking plate 17 for holding the stirrup in its adjusted'position preferably consists of a thin metal strip provided on one end with a slot 23 for pivotally engagingthe pivot hook 1b of the member 15, and at its opposite end with a transversely disposed opening 24 for engaging the upper vertical end 19 of member 12, a locking groove 25 being formed at the base of the end portion 19 for engaging the, outer edge 26 of the opening 24 to prevent an accidental displacement of the plate after a locking operation. A longitudinally disposed slot 27 leads from opening 24 inward- I 1y to permit of a freemovement of the lockrup on the rod 7, the same will be rigidly held in its adjusted position, the locking .plate preventing an accidental disengage ment of the rod fromthe slot 21.

When the suspension devices are employed forsupporting a ceiling framework, the rods 7 are first inserted in the aper tures formed in the apexes of the metal joist mold pans (not shown), the eyes 8 of the rods projecting thereabove in order that the same may be embedded in the concrete ing plate with respect to the suspension rod. From the above description it will be ap- ,parent that after an adjustment of a stirwhen the same is poured. After the concrete is set the joist pans (not shown) are .removed and the stirrups are adjusted and secured in position on the rods, the looking plates 1" securing the same against movement. Channel irons are then mounted in the various rows of stirrups, the angular portions let and 18- preventing any accidental upward movementof the irons. Other smaller channel irons 31 are then secured by means of wires 32 to the lower flanges of channel irons 30, said irons 31 being disposed transversely with respect to the channel irons 30, and equally spaced apart. Expanded metal lathing .33 is then suitably secured to the lower flanges of the channel irons 31, and the framework thus formed is ready for the plaster coats.

By means of the device described herein, ceiling frames may be rigidly suspended from the floors of buildings, the adjustable stirrups permitting a ready levelling adj ustment of the frames. As the upper ends of th suspension rods are securely embedded in the concrete floors, no stretching or sagging will occur, and the plastered ceilings when finished will present a smooth surface free from cracks.

What I claim is:

1. A ceiling suspension device for buildings comprising a suspension rod adapted to be secured to a stationary support, a beam supporting member consisting of a single length of strap metal bent upon itself to form a supporting stirrup vertically adjustable along said rod, and means to lock said beam supporting member in its adjusted position on said rod.

2. A ceiling suspension device for buildings comprising a metal rod adapted to .be secured to a stationary support, said rod having a-plura-lity of flat deformations arranged in oppositely disposed pairs, a frame supporting member of stirrup form having a rod engaging portion slidably mounted on said rod, said rod engaging portion adapted to engage a pair of the flat deformations, whereby the stirrup may be held in an adjusted position on the rod, and a locking means secured to the rod engaging portion of the supporting member for holding the frame supporting member in its adjusted position on said rod.

3. A ceiling suspension device for buildings comprising a metal rod adapted to be secured to a stationary support, means formed along said rod for adjustably supporting a ceiling carrying member, a beam supporting member of stirrup form mounted on said rod and engaging the means formed thereon for adjustably supporting the same in position, and a latch plate pivotally secured to one leg of the beam supporting, member and engaging the other leg for locking the same to said rod.

l A ceiling suspension device for buildings' comprising a metal rod having a bent portion on one end thereof for securing the same to a stationary support, said'rod being provided with a plurality of oppositely disposed flattened portions forming supporting ledges, a metal stirrup member for detacha-bly supporting a framework adjustably mounted on said rod, said stirrup having a rod attaching portion formed integrally therewith and provided with an aperture for the passage of the rod therethrough and a slot leading from said aperture for engaging the ledges of the flattened portions of said rod when the stirrup is adjusted thereon, and a latch member pivotally secured to the rod attaching portion, the free end of said latch adapted to engage the stirrup to hold the same in locked engagement with said rod. v

5. A ceiling suspension device comprising a metal rod adapted for embedment in a concrete floor so as to project therebelow, said rod being provided in its surface with a plurality of transversely disposed depressions, a beam supporting member consisting of a length of strap metal bent upon itself to form a pair of vertically disposed mem bers spaced apart, the freeendof one of said members being bent at an angle thereto andhaving a circular opening for the passage of the rod therethrough and a slot leading from said opening for engaging the depressions in said rod, whereby the supporting membermayzbe adjustably secured along the length of said rod, and a latch member pivotally secured to the endof the angular portion of the said beam support ing member, the outer end of said latch member adapted to engage the free end of the other beam supporting member,whereby to maintain the beam supporting member from displacement after an adjustment of the same along the rod, said .latch'member having a slot for the passage of the rod therethrough.

In witness that Iclain the foregoing I have hereunto subscribed my name this 4th day of November, 1925;

CLAUDE E. BOWERS. 

